It seems that the Jims have been down that road too. Rustoeum is fine by itself, but it doesn't like other tyes of paint.
I glanced at the product description. The bottom line is that it's rattle can paint. You can get away with rattle can on automotive paint as a half @$$ed, cheap alternative to do patch up work, as I have done with my car. But you cannot use rattle can paint, then follow up with automotive paint.