The spent some time around Havasu and there are several good places for boondocking, north and south of town. However, the biggest problem I had was getting a shower. I guess there is a gym or two in town, if you like going to that sort of place. Old codger versus a lot of young buffsters. Woof. Or you can drive 20 miles north to the truck stops at I-40. I also recall stopping at Cattails Cove SP and it was both expensive and completely full (high season).
In contemplating heading to AZ this winter, I see showering in common facilities like the laundromats in Q and E as possible health hazards.
And jimmy, I hope you realize you responded to a 6 yearold post.