Not to pour cold water or what, but I think you need to lower your standards a bit.

Your years spent in SPF is not relevant market experience, so you are no different from a fresh hire exp wise. Also I imagine SPF has much better bonus, allowance and benefits compared to most firms in the auto industry.

I don't think you are going to get anything if you insist on matching what you are drawing as a police uniform group now. Public sector is easier said than done as most stat boards and ministries prefer local uni grads even for farmer. FT SIM might have a slim chance in less attractive and smaller stat boards, but if your degree is PT they are not going to offer you as deg grad, which means pay cut also.

End of the day if you find civil service not to your liking and want to come out and learn and potentially move upwards, some sacrifice will be needed. Cannot expect best of both world, esp now with so many uni grads who are unemployed or hanging on to contract jobs.