Trevor Watts has resigned from his role as Queensland's shadow police minister after being fined for breaching coronavirus restrictions at the weekend.

The Liberal National Party MP said he accepted "full responsibility" for his actions, which saw him "catching up with neighbours" in their respective driveways on Sunday afternoon.

Trevor Watts, pictured in 2017, has been fined for breaching COVID-19 restrictions at a weekend gathering. Credit:AAP

Two off-duty police officers were also fined in relation to the street gathering in East Toowoomba, Brisbane Times understands.

"At the time, I did not consider my actions were in breach of the rules," the member for Toowoomba North said in a statement. "My actions demonstrated a momentary lack of judgment and I regret them deeply."