Acetone will melt and erode plastic if it comes into contact with it. So any significant spillage will be bad news. Try dedicated CA debonding agent ususally available from hobby stores that also sells CA glue packaged for hobby interests. It will soften up any solidified CA glue to a gel like consistency, which you can easily wipe away.
CA debonding agent will also slightly soften bare (but not melt) plastic when it first comes into contact with plastic, but only slightly, not enough to cause deformation. When it drys, the plastic hardens back up to original levels. CA debonding agent also does not seriously attack enamal paint. If you touch the paint while while the debonding agent is wet, it will mark the paint surface, but otherwise the debonding agent will just dry and leave the paint intact.
One issue with debonding agent is if you expose unpainted plastic to it, then the agent will dry leaving a white residue on the plastic. The white residue appearently repels paint, so if you spray over it, the paint will migrate away from the residue, leaving a bare spot on the plastic. But a little alcohol appears to remove the residue from plastic and allows proper painting to continue.