Daiwon McPherson, 33, duped his girlfriend, Shawna Blackmon, 28, into thinking he was armed and on the run in Mobile, Alabama on Friday.
Mr McPherson, his motorbike group and Miss Blackmon were ‘caught’ by police at a petrol station just outside the town.
The officers pulled out stun guns and demanded Mr McPherson get on the ground.
Mr McPherson followed their orders as his terrified girlfriend tried to diffuse the situation.
When the officers demand he gives up his ‘gun’, instead of a weapon Mr McPherson pulls out an engagement ring.
Ms Blackmon, who quickly goes from being frightened to overjoyed, cannot hold back her tears and is comforted by an officer.
Mobile Police spokesman Terrence Perkins said the officers were holding unloaded stun guns and all other on-duty officers were told about the fake call before it went out.
Friend Tyler Colvin posted a video of the unorthodox marriage proposal on Facebook, where it quickly went viral.
He said that Mr McPherson had ‘created and fed’ his girlfriend a story throughout the day, so she would believe him when he said they were on the run.
‘I was scared,’ Miss Blackmon told WPMI-TV. ‘I said he was going to jail, they are going to shoot him.’
Biker Mr McPherson told Al.com: ‘I really wanted to bring the bike life and the police together. I can’t believe I actually pulled this off.’
Police spokesman Mr Perkins said the department had received some negative comments about the stunt but that the positive feedback far outweighed the negative.
He added: ‘It actually showed us outside the capacity of writing tickets. It showed that we do have a human side as well.’